Winter Weather Advisory
URGENT - WINTER WEATHER MESSAGE
National Weather Service Pocatello ID
749 AM MDT Fri Mar 21 2025
IDZ060-062>064-066-212200-
/O.CON.KPIH.WW.Y.0015.250322T0000Z-250323T0600Z/
Bear River Range-Blackfoot Mountains-Caribou Range-Big Hole
Mountains-Centennial Mountains - Island Park-
Including the cities of Grace, Island Park, Soda Springs, Wayan,
Swan Valley, Emigration Summit, Henry, Victor, Kilgore, and Bone
749 AM MDT Fri Mar 21 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO MIDNIGHT MDT SATURDAY NIGHT...
* WHAT...Snow expected. Total snow accumulations between 2 and 6
inches, 6 to 12 inches across the highest peaks and above pass
level. Winds gusting 40 to 50 mph.
* WHERE...Big Hole Mountains, Centennial Mountains - Island Park,
Bear River Range, Blackfoot Mountains, and Caribou Range.
* WHEN...From 6 PM this evening to midnight MDT Saturday Night.
* IMPACTS...Travel could be very difficult. The hazardous conditions
could impact the Friday evening commute. Gusty winds could bring
down tree branches.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. Call 5 1 1 or visit
511.idaho.gov for the latest road conditions.
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
455 AM MDT Fri Mar 21 2025
WYZ001-012-014-024-220100-
/O.CON.KRIW.WW.Y.0018.250322T0000Z-250323T0000Z/
Yellowstone National Park-Teton and Gros Ventre Mountains-Wind
River Mountains West-Salt River and Wyoming Ranges-
Including the cities of Mammoth, Old Faithful, and Lake
455 AM MDT Fri Mar 21 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT SATURDAY...
* WHAT...Snow expected. Total snow accumulations between 4 and 8
inches in mountain valleys, and 8 to 12 inches for mountain peaks
and passes, with localized higher totals in the highest Tetons.
Winds gusting 40 to 50 mph.
* WHERE...Western Wind River Mountains, Teton and Gros Ventre
Mountains, Yellowstone National Park, and Salt River and Wyoming
Ranges.
* WHEN...From 6 PM this evening to 6 PM MDT Saturday.
* IMPACTS...Expect winter travel conditions over mountain passes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling over mountain passes.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
URGENT - WINTER WEATHER MESSAGE
National Weather Service Riverton WY
455 AM MDT Fri Mar 21 2025
WYZ013-023-220100-
/O.CON.KRIW.WW.Y.0018.250322T0000Z-250323T0000Z/
Jackson Hole-Star Valley-
Including the cities of Thayne, Afton, Alpine, Jackson, and Star
Valley Ranch
455 AM MDT Fri Mar 21 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 6 PM MDT SATURDAY...
* WHAT...Snow expected. Total snow accumulations between 3 and 6
inches. Winds gusting 30 to 40 mph.
* WHERE...Jackson Hole and Star Valley.
* WHEN...From 6 PM this evening to 6 PM MDT Saturday.
* IMPACTS...Expect winter driving conditions. Gusty winds could
cause lower visibility due to blowing snow, along with localized
drifting in Jackson Hole.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling.
For graphical depictions of the snowfall forecast, including the
official NWS forecast, high end amounts, and low end amounts, visit
https://weather.gov/riw/winter .
For winter road conditions from the Wyoming Department of
Transportation, visit https://wyoroad.info .
&&
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
Straub
URGENT - WINTER WEATHER MESSAGE
National Weather Service Salt Lake City UT
250 AM MDT Fri Mar 21 2025
UTZ110>113-220000-
/O.NEW.KSLC.WW.Y.0015.250322T0200Z-250322T2200Z/
Wasatch Mountains I-80 North-Wasatch Mountains South of I-80-
Western Uinta Mountains-Wasatch Plateau/Book Cliffs-
Including the following locations - Moon Lake, Alta, Indian
Canyon, Mantua, Mirror Lake Highway, Logan Summit, Brighton, and
Scofield
250 AM MDT Fri Mar 21 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 4 PM
MDT SATURDAY...
* WHAT...Snow expected. Total snow accumulations of 5 to 10 inches,
with locally higher amounts up to 16 inches in the upper
Cottonwoods and Bear River range.
* WHERE...The Wasatch Mountains, Western Uinta Mountains, and
Wasatch Plateau/Book Cliffs.
* WHEN...From 8 PM this evening to 4 PM MDT Saturday.
* IMPACTS...Winter driving conditions are expected along all
mountain routes. Traction laws may be enacted.
* ADDITIONAL DETAILS...The window for heaviest snowfall will come
overnight through Saturday morning, with snow tapering to showers
Saturday afternoon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Slow down and use caution while traveling. For winter road
conditions from the Utah Department of Transportation, visit
http://www.udottraffic.utah.gov.
For graphical depictions of the snowfall forecast, including
Official NWS Forecast, High End Amount, and Low End Amount, visit
weather.gov/slc/winter.
&&
$$
For more information from the National Weather Service visit
https://weather.gov/saltlakecity.
For information on potential travel impacts visit
http://udottraffic.utah.gov
MPS
High Wind Watch
URGENT - WEATHER MESSAGE
National Weather Service Riverton WY
252 AM MDT Fri Mar 21 2025
WYZ019-020-220000-
/O.NEW.KRIW.HW.A.0008.250322T1200Z-250323T0000Z/
Green Mountains and Rattlesnake Range-Natrona County Lower
Elevations-
Including the cities of Casper and Jeffrey City
252 AM MDT Fri Mar 21 2025
...HIGH WIND WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SATURDAY
AFTERNOON...
* WHAT...West winds 35 to 45 mph with gusts up to 70 mph possible.
* WHERE...Green Mountains and Rattlesnake Range and Natrona County
Lower Elevations.
* WHEN...From Saturday morning through Saturday afternoon.
* IMPACTS...Travel could be difficult, especially for high profile
vehicles, and along Outer Drive in Casper.
$$
For more information from the National Weather Service, visit
https://weather.gov/riw/ .
Straub
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Grand Junction CO
456 AM MDT Fri Mar 21 2025
COZ001>014-017>023-UTZ022>025-027>029-221100-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
456 AM MDT Fri Mar 21 2025
This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.
.DAY ONE...Today and tonight.
Mild weather today ahead of the next system tonight. Look for light
show showers developing across the northern and central mountains
this evening becoming heavier after midnight. Most of these areas
will see 2 to 4 inches of snow by morning with the Park Range getting
upwards of 6 inches.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
The storm system continues Saturday morning into Sunday bringing
another 4 to 10 inches for the northern and central
mountains.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.
$$
Hazardous Weather Outlook
National Weather Service Riverton WY
249 AM MDT Fri Mar 21 2025
WYZ001>020-022>030-221300-
Yellowstone National Park-Absaroka Mountains-Cody Foothills-
North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin-
Owl Creek and Bridger Mountains-Bighorn Mountains West-
Bighorn Mountains Southeast-Northeast Johnson County-
Southeast Johnson County-Teton and Gros Ventre Mountains-
Jackson Hole-Wind River Mountains West-Wind River Mountains East-
Upper Wind River Basin-Wind River Basin-Lander Foothills-
Green Mountains and Rattlesnake Range-
Natrona County Lower Elevations-Casper Mountain-Star Valley-
Salt River and Wyoming Ranges-Upper Green River Basin Foothills-
Upper Green River Basin-South Lincoln County-
Rock Springs and Green River-Flaming Gorge-East Sweetwater County-
249 AM MDT Fri Mar 21 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM FRIDAY TO 6 PM MDT
SATURDAY...
This Hazardous Weather Outlook is for Western and Central Wyoming.
.DAY ONE...Today and tonight.
Accumulating snow arrives overnight tonight for western mountains and
valleys.
.DAYS TWO THROUGH SEVEN...Saturday through Thursday.
Saturday...A strong storm system will impact the area, bringing the
possibility of 50 to 60 mph wind gusts to central and southern
portions of the region, as well as the mountains. Snow continues in
the western mountains and valleys, where total snowfall of 8 to 12
inches is expected in the mountains with 3 to 6 inches in Jackson
Hole and Star Valley. The snow will combine with wind gusts 25 to
35 mph to create areas of blowing snow. The chance for rain changing
over to snow in the afternoon is highest over the Bighorn Basin.
.SPOTTER INFORMATION STATEMENT...
Weather spotters are encouraged to report significant weather
conditions according to Standard Operating Procedures.
$$
